baber/WOPTO huggingface dataset:
Patent GB-957765-A (GB)
Title: Improvements relating to document sorting machines
Inventor: STREET LESLIE JOHN
IPC: G06K13/073
Filed: 1962-04-04
Abstract: 957,765. Sorting of documents. PARNALL & SONS Ltd. April 1, 1963 [April 4, 1962], No. 12879/62. Heading G4M. Cheques or football pool coupons are fed from a conveyer 7 to a rotating vacuum drum 9 which transports them past a sensing station 20 and on past sorting stations 15 arranged around the periphery of the drum. Drum 9 is provided with fixed shoes 21 in its interior to cut off the suction through perforations 14 in the vicinity of solenoid-actuated deflectors 16. The arms of deflectors 16 move into grooves in the drum surface to strip off the documents. Sensing may be magnetic or photo-electric.
Patent GB-769808-A (GB)
Title: Improvements in or relating to facsimile recording apparatus
Inventor: MASON FREDERICK PERCIVAL
IPC: H04N1/36
Filed: 1955-05-04
Abstract: 769,808. Copying-telegraph receivers. CREED & CO.,' Ltd. May 4, 1955, No.12898/55. Class 40 (3). An arrangement for protecting a facsimile recording apparatus against a false start in response to random signals comprises means for registering a first incoming pulse and generating subsequently, at a predetermined time interval, a testing pulse which in combination with a second incoming pulse starts the recorder, but which cancels the registration of the first incoming pulse if the second incoming pulse is not received in coincidence with the testing pulse. A received signal detected by a filter 2 is passed by demodulator 3 as a positive pulse to the grid 5 of a valve 6 and to the grid of a gas-discharge tube 4 which conducts and cuts off a normallyconducting valve 10. A capacitor 13 begins to charge and after a predetermined time interval a valve 14 conducts and initiates from the secondary winding 22 of a transformer 21 a positive pulse which is applied to the grid of a valve 33 and to the second grid 7 of the valve 6. A little later, due to the higher positive potential of its cathode, the valve 15 conducts and terminates the positive pulse applied to the valves 6, 33. If a second pulse is received via filter 2 and demodulator 3 during the positive pulse determined by the valves 14, 15 and transformer 21, the valve 6 conducts, operating relay 24 which locks up over contact 25 and starts the recorder. Additionally, a signal is sent to the transmitter to suppress the transmission of further start signals. The positive pulse fed from the secondary winding 22 makes valve 33 conducting, and if no further impulse is applied via filter 2 and demodulator 3, the valve 4 is cut off by the negative pulse applied to the plate 8 from the anode resistor 27 and the valve 10 becomes conducting so that the capacitor 13 is discharged and the valves 14, 15 become non- conducting. The arrangement may be extended to be responsive solely to three or more control pulses at predetermined intervals.
Patent GB-341814-A (GB)
Title: Improvements relating to electric circuit breakers
IPC: H01H9/36
Filed: 1930-04-26
Abstract: 341,814. Automatic circuit-breakers. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London.-(Assignees of Slepian, J.; 1115, Lancaster Street, Pittsburg, U.S.A.) April 26, 1930, No. 12910. Convention date, April 27, 1929. [Class 38 (v).] Arc-rupturing devices of the deionizing type, for example, as described in Specification 288,326 and 332,851, [both in Class 38 (v), Electric switches &c.], have a conducting sheet embedded in an insulating sheath surrounding the edges of the deionizing plates to cause equalization of potential distribution between the plates when the switch contacts are at different potential. The sheet is connected at one end to a contact and tapers towards the other end. Fig. 1 shows a switch of the construction disclosed in Specification 332,851 provided with such an arrangement. The stack of metal plates 17 is mounted between endplates 11, 15 by means of a bolt 24 and is surrounded by an electrostatic shield 23 extending past the endplate 15 as shown. Two sheets 28, 29 of tin foil are embedded in insulation to form the shield, the sheet 29 having terminals 32 connected to the plate 15 which constitutes the ungrounded terminal of the stack. The sheets are of the shape shown in dotted lines, the shape being determined in practice by the capacity existing between a plate 17 and an earthed part of the apparatus and between the same plate and the sheet or sheets. To reduce corona stresses between the sheets and the plates 17 and the core 30 of the blow-out magnet, respectively, and to confine them within the sheath, a set of circumferential strips 35 and a sheet of foil 33 are embedded in the sheath inside and outside, respectively, the sheets 28, 29, the strips 35 assuming the potential of the plates and the sheet 33 that of the core. Numerical figures for the plates 17 and a formula for calculating the capacities, and hence the shapes of the sheets 28, 29 are given in the Specification.
Patent GB-244990-A (GB)
Title: Improvements in or relating to d or stirrup-shaped handles for spades, shovels, forks and the like
IPC: B25G3/02
Filed: 1925-05-19
Abstract: 244,990. Lace, R., and Leedham & Heaton, Ltd. May 19, 1925. D or stirrup handles. - The ends of the grip d are grooved or concaved vertically and the inner edges of the bifurcations b of the shaft a are rounded at b<1> so that the grip is locked against rotation when the rivet e is clenched. A wedge shaped piece c is riveted in the bifurcation of the shaft. Metal caps of known construction may be secured over the ends of the bifurcations extending over the junctions of the grip.
Patent GB-1468637-A (GB)
Title: Ear protecting device for safety caps
Inventor: DAVISON ELLISON L
IPC: A42B3/16
Filed: 1975-03-27
Abstract: 1468637 Ear protectors MINE SAFETY APPLIANCES CO 27 March 1975 ,[26 June 1974] 13049/75 Heading A3V Ear protectors 23 are mounted on spring arms 17 releasably held on a safety cap encircling band 2 by a supporting bracket 5. The apertured end of an arm is mounted on a circular hollow flange 11 of the bracket and held by a lug 18. The arm is released by aligning a notch 19 therein with the lug. The thickness and width of the arms tapers towards the lower end. A bolt, projecting through the flange 11, a nut 14 and resilient washer 15 hold a face mask 13 against the flange. The brackets and band are supported on the brim of the cap by hooks 9. The bracket is retained on the band by ribs 7.
Patent GB-552035-A (GB)
Title: Improvements in or relating to sumps or reservoirs for cooling liquids for machine tools
IPC: B23Q11/14
Filed: 1941-10-10
Abstract: 552,035. Gravity-separator apparatus. JONES & SHIPMAN, Ltd., A. A., and HOULDSWORTH, J. Oct. 10, 1941, No. 13100. [Class 46] [Also in Groups XXII and XXIII] A device to serve as a sump for use in circulating cooling fluid and separating contained swarf in lathes, milling, grinding, and like machines is built up from sheet metal, as by welding, and contains two or more superposed compartments so arranged that liquid passes from the top compartment to that at the bottom. In addition each compartment may be subdivided horizontally. The sump is closed by a flanged lid 17 with a front portion 17b hinged at 33 that normally maintains a shoot 35, pivoted at 36, in the position shown in Fig. 3. The lid has a collector bin 18 discharging at 19 into the top compartment D near the partition 11 that provides a dry space in which the motor 10, for the pump 9 is located. The bottom of the top series of compartments A slopes upwardly at 6a towards the front, and the partition 23 is notched at this end to form a weir 23a over which the liquid flows into the compartment E the partition 24 having a weir notch 24a for delivery to the compartment F which delivers by a hole to a fall conduit 22 communicating with a similar set of compartments B through which the liquid flows in reverse order finally to reach the pump 10. Baffles are pro- 'vided at the weirs to act as scum traps, those 27 at the front being removable to facilitate cleaning out swarf. This is effected without stopping the operation of the device by opening the hinged flap 17b and letting the shoot sink forward onto the step 37. At the same time a hinged flap 30 held in place by spring .catch 32 is released to cover the openings to the lower compartments. Sludge can then be loosened by a poker 38 and raked up by a scraper 41 to fall 'via the shoot into a tank 8 supported on wheels 43 at one end and on a strip 44 at the other. After the compartments A have been cleaned the flap 30 is replaced and the compartments B are treated. The tank 8 can be removed through an opening 3 when emptying is necessary. The poker and scraper are kept in two of the compartments when not in use.
Patent GB-586197-A (GB)
Title: Improvements in and relating to propulsion devices for clay pigeon shooting
IPC: F41J9/20
Filed: 1944-07-10
Abstract: 586,197. Trap-shooting. YATES, E. A. July 10, 1944. No. 13108. [Class 132 (i)] A device for projecting a target disc into the air for clay pigeon shooting comprises an arm c pivoted at b to a board a which is supported on a stand in an inclined position at an angle which can be adjusted to vary the direction of propulsion of the target disc. The arm c is held against a stop g by a peg j engaging a trigger loop k, being retracted against the tension of elastic bands e looped round studs d on the arm c and studs f on the board a. The target disc rests on the arm c supported by a peg h and is held clear of the board by a raised part thereof r, the arm being appropriately cut away to clear the raised part. The pegs h and j and a third peg m are mounted on a block i behind the board; they work in bushes and are held in their forward position by a coil spring o inserted between the board a and a knob n on the forward end of the peg m. When the knob n is pressed the peg j disengages the trigger loop k, the supporting peg h is withdrawn and the contraction of the elastic bands e causes the arm c to project the target into the air, the portion u of the board a being cut away to prevent the studs d from hindering the swing of the arm c.
Patent GB-593244-A (GB)
Title: Improvements relating to turf-cutting apparatus
IPC: E21C49/02
Filed: 1945-05-25
Abstract: 593,244. Agricultural implements. AVELING - BARFORD, Ltd., and LEVERETT, E. G. May 25, 1945, No. 13129. [Class 6 (ii)] [Also in Group XXI] Turf cutting apparatus for attachment to a bulldozer or like vehicle, comprises a frame supporting a transverse undercutting blade 6 in advance of which are two forwardly directed side cutting blades 7 and in the rear of the blade 6, a pivoted angularly movable curved abutment plate 12 is provided to form the turf into a compact roll after cutting, the plate 12 being normally biassed towards the blade 6 by a spring 21. Adjustable skids 27 are used to regulate the depth of cut. The frame is provided with a stem 1 for insertion into the central blade carrying beam 2 of a small bulldozer. In modification, rollers may be employed instead of skids 27 and rotary disc coulters instead of side blades 7. The abutment plate 12 may be biassed by a leaf spring or alternatively by a weight. Stops may be provided to limit the movement of said plate. Means may be provided for severing the web of turf transversely when the roll has assumed its maximum diameter, and for ejecting the roll from the apparatus.
Patent GB-694913-A (GB)
Title: An improved trestle
Inventor: RAE JOHN SPENCE
IPC: A61G1/06
Filed: 1951-06-04
Abstract: 694,913. Trestles. BRADY & MARTIN, Ltd. April 2, 1952 [June 4, 1951], No. 13152/51. Class 52(iii) A trestle for supporting ambulance stretchers consists of a pair of U-shaped frames 1, 2 having their cross bars hingedly connected, as by loosely fitting bolts 9, or wire loops, and provided with locating pegs 3 and limit stops 4.
Patent GB-131896-A (GB)
IPC: C22C33/00
Abstract: 131,896. Deutsche Molybdaen-Werke Ges. Nov. 25, 1916, [Convention date]. Alloys.-In the production of alloys of iron and molybdenum, alkaline earth salts of molybdic acid are caused to react with a bath of molten iron in the presence of carbon which is either added to or contained in the bath. Silicic acid is preferably added to form an easily fusible slag. The Specification as open to inspection under Sect. 91 (3) (a) describes also the production of alloys of iron with other metals of the chromium group by the use of alkaline earth salts of the corresponding acids. This subject-matter does not appear in the Specification as accepted.
Patent GB-556885-A (GB)
Title: Improvements in or relating to heel-guards for use inside boots and shoes
IPC: A43B23/28
Filed: 1942-09-18
Abstract: 556,885. Heel guards. LOWENSTERN, E. Sept. 18, 1942, No. 13206. [Class 17 (ii)] A heel guard comprises a tread portion T and a heel portion H, which is provided with tongues 1, 2 adapted, when the heel portion is curved, to overlap the tread portion T to which it is secured by adhesive. The tread part is then enclosed in a covering formed by folding a blank C, to conceal and protect the tongues. The tread portion may be separate from the heel portion, and may be split to receive the tongues. Alternatively, the covering may comprise a part integral with the tread portion, this part being folded back over the tread portion after the tongues have been secured in place. The tongues may be formed on the tread portion and attached to the heel portion, to which a covering is afterwards applied.
Patent GB-1412925-A (GB)
Title: Process for preparing methyl 3-2-quinoxalinyl-methylene  carbazate n1n4- dioxide
IPC: C07D241/52
Filed: 1974-03-25
Abstract: 1412925 Process for preparing methyl 3-(2- quinoxalinylmethylene)carbazate- N<SP>1</SP>,N<SP>4</SP> - dioxide PFIZER Inc 25 March 1974 13216/74 Heading C2C A novel process for preparing methyl 3-(2- quinoxaliny]methylene)carbazate- N<SP>1</SP>,N<SP>4</SP> - dioxide comprises contacting C 2-18  alkyl, cyclohexyl or a tetrahydrofuryl 3-(2-quinoxalinylmethylene) - carbazate - N<SP>1</SP>,N<SP>4</SP> - dioxide with methanol in the presence of a catalytic amount of a strong acid at a temperature from 25‹ to 200‹ C. until the reaction is substantially complete and recovering the required crystalline product. The product is used as a urinary tract antiseptic, systemic, anti-infective, animal growth promotant, a feed efficiency improver in animals and as an agent for the control of chronic respiratory disease in poultry.
Patent GB-1042097-A (GB)
Title: Improvements in pressurizing and drain valve
IPC: F02C7/232
Filed: 1965-03-29
Abstract: 1,042,097. Valves. GENERAL ELECTRIC CO. March 29, 1965 [May 29, 1964], No. 13235/65. Heading F2V. A valve for controlling the supply of fuel to the burners of a gas turbine engine and the drain of fuel when the engine is shut down, comprises a valve member 27, Fig. 1 (not shown), which is loaded to the right by a spring 35 and a signal pressure fed to chamber 36 and is subjected to the fuel supply pressure fed through line 15 tending to move the valve to the left. The valve has a V-shaped metering port 56 which co-operates with a sleeve 29 to meet flow to the burners through line 17 when the valve is moved to the left by the pressure differential across the valve. When the engine is shut down and the fuel pressure falls, the valve is moved to the right by the spring and signal pressure and fuel in the line 17 drains through ports 52, 54 to the drain outlet 19.
Patent GB-475102-A (GB)
Title: Improvements in or relating to nut locking devices
IPC: F16B39/04
Filed: 1936-05-12
Abstract: 475,102. Looking nuts. PISCHEK, F., and NIEDENTHAL, F. May 12, 1936, No. 13447. [Class 89 (i)] In nut-locking devices wherein a pin is inserted in a notch in the nut and a fixed sealing and the num ber of notches in the two differ by at least one, the notches and pin are tapered inwardly in width. Th( nut 4 has a reduced cylindrical portion f which is provided with notches and a sealing member 7 with a square base fitting into the work 1 has an upstanding part 8 with similar but a different number of notches. The parts are locked by a tapered tooth 9 carried by a spring ring or a wire 10 and having a depth sufficient to engage the nut and the sealing notches. The sealing may be formed by an integral projection on the work or by a similar but reversed check-nut.
Patent GB-379265-A (GB)
Title: Improvements in kneading, grinding and mixing machines
IPC: B28C5/32
Filed: 1932-05-10
Abstract: 379,265. Mixing, grinding, &c. machines. EIRICH, L. and EIRICH, J., Hardheim, North Baden, Germany. May 10, 1932, No. 13476. Convention date, June 20, 1931. [Classes 59 and 86.] A kneading, mixing, or grinding machine comprises a rotating pan having a central discharge aperture surrounded by a low wall which is enclosed by a fixed cylinder having an orifice therein through which the material passes to the aperture, a dam extending from the aperture to the edge of the pan in which are arranged kneading &c. tools, which can be driven at a constant speed, while that of the pan is varied. The pan 2, Fig. 1, is supported on rollers 1 and is rotated through stepped pulley gearing 21. The discharge aperture 3 has a surrounding wall 4, the pan being centred by a flange 8 carried by a spider 9 on a central shaft 7. The wall 4 is enclosed in a cylinder 13 the opening in which can be closed by a shutter. The tools shown show three edge runners 5, Fig. 3, and a mixing tool 11<1> all of which are driven from a central gear wheel 18, and the dam 10, which may be adjustable, is arranged after the mixing tool in the direction of rotation of the pan.
Patent GB-1489454-A (GB)
Title: Hydroxyalkyl hydroxy-aromatic condensation products as fuel and lubricant additives
IPC: C10N30/04
Filed: 1975-04-02
Abstract: 1489454 Polyolefin derivatives LUBRIZOL CORP 2 April 1975 [9 April 1974] 13502/75 Heading C3P [Also in Division C5] Condensation products suitable for use as fuel and lubricant additives are prepared by reacting (A) an α-hydroxyalkyl hydroxyaromatic compound of formula where Ar is a C 6-30  aromatic nucleus, R is a non-fused hydrocarbyl substituent of 4 to 700 carbon atoms derived from a polyolefin, each R<SP>1</SP> is H or C 1-36  alkyl or haloalkyl, n is 1 to 3 and m is 1 to 5 provided that the total number of carbon atoms in the R<SP>1</SP> groups does not exceed 36, the total number of carbon atoms in R is at least 7 and where m exceeds 1 one of the R groups can also be R<SP>1</SP> 2 C(OH)- with (B) an olefinically unsaturated carboxylic acid or derivative thereof. The condensation products may be further reacted with amines, alcohols epoxides, metals or salts thereof. Examples describe the reaction of polyisobutenyl phenol with paraformaldehyde and of the product with (1) maleic anhydride followed by (2) polyethylene polyamide and (6) pentaerythritol; with (3) acrylic acid followed by (4) polyethylene polyamine; and with (5) chloromaleic anhydride and polyethylene polyamine; and of a polysulphide linked polyisobutenyl phenol with (7) paraformaldehyde and maleic anhydride.
Patent GB-933164-A (GB)
Title: Improvements in or relating to implements for laterally displacing crop lying on theground
IPC: A01D78/00
Filed: 1959-11-05
Abstract: The subject-matter of this Specification is included in Specification 933,163 but the claims differ.
Patent GB-762073-A (GB)
Title: A method of engaging parts of rubber with co-operating members such as for assembling a hose and a hose end fitting
IPC: F16L33/207
Filed: 1952-05-28
Abstract: In a method of engaging, one within the other, a member made of rubber or other material elastic at normal temperatures, and a co-operating member with which the rubber member is difficult to engage by reason of its shape and/or dimensions, the rubber member is deformed to a shape such that it will engage readily with the other member, is treated temporarily to remove, reduce or retard its property of elastic recovery so that it may be freed from the deforming means, the two members are engaged, and the elastic property of the rubber is restored or allowed to recover.  As described, the members consist of a hose pipe and a steel end-fitting (see Group XXVIII).  The elastic recovery of the rubber is delayed by cooling to a temperature of -20 DEG C. to -50 DEG C., and the rubber regains its elasticity or is heated to restore the elasticity.
Patent GB-360400-A (GB)
Title: Improvements in or relating to centrifugal brakes
IPC: H04M1/315
Filed: 1930-05-02
Abstract: 360,400. Brakes. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm. May 2, 1930, No. 13605. Convention date, May 6, 1929. Void [Published under Sect. 91 of the Acts]. [Class 103(i).] Applied by speed responsive. devices.-In centri. fugal brake regulators particularly for finger discs apparently of impulse transmitters for automatic telephones, in which the weights are mounted on pivots perpendicular to the rotating shaft, the weights engage the fixed cylindrical brake surface at a point between the pivot and the centre of gravity of the weight so that the braking pressure is greater than the centrifugal force. The brake comprises weights 21, 22 pivoted at 23, 24 to' a piece 25 secured to the shaft 14 so as to engage when in the operative position the fixed cylindrical surface 36, the point of engagement of the weights with this surface lying between the pivots and the centre of gravity of the weights. The outward movement of the weights is opposed by a spring 26 through a washer 27 which is in contact with the piece 25 when the weights are at rest. The spring 26 may be replaced by a blade spring arranged similarly to the washer 27 but fixed to the shaft. The shaft is driven by a worm wheel 7 'carried by the shaft 2 of the finger disc 1. During the rotation of the disc to the setting position the shaft 14 moves axially to the right until it is stopped by the engagement of an abutment 33 with a spring arm 29 as shown, the weights 21, 22 being then within the enlarged part of the cylindrical member 20 so that they have no braking action. When the disc is released the restoring spring 5 secured at its ends respectively to the fixed bearing 4 and to the wheel 7 drives the parts in the reverse direction, .the shaft 14 moving to the left so that the weights engage the braking surface 36.
Patent GB-732605-A (GB)
Title: Unsymmetrical conducting device, particularly crystal diode
IPC: H01L21/00
Filed: 1953-05-15
Abstract: 732,605. Semiconductor rectifiers. STANDARD TELEPHONES & CABLES, Ltd. May 15, 1953 [June 27, 1952], No. 13660/53. Class 37. In a crystal diode, the element and electrode are mounted on plugs of polygonal cross-section which are held in an insulated tube by their sharp edges engaging rings attached to the tube. In Fig. 1, the brass rings 2, 2<1> are pushed into the open ends of ceramic tube 1 and rods 3, 3<1> of square cross-section are driven through the centres of rings 2. 2<1>. Rods 3, 3<1> carry the crystal 5 of germanium, silicon or other semiconductor and the whisker electrode 4. Sealing is effected by moulding compound or cement 9, 91. The spaces 6 between rods 3 and tubes 2 enables the crystal cavity to be filled with a suitable compound to render the electrode assembly shock-proof. A large wafer of germanium may be soldered in one operation to the end surfaces of a bunch of rods 3, and then cut so that the rods may be separated, each bearing its portion of germanium.
Patent GB-257866-A (GB)
Title: Bracelet-fastener
IPC: A44C5/20
Filed: 1926-05-31
Abstract: 257,866. Schaefer, K. A. May 31, 1926. Bracelets.-A bracelet or watch wristlet is provided at one end with a cranked tongue 3 having an eye 2 at its inner end adapted to be engaged by a flap 13 pivoted by a hinge 14 to a casing 9 arranged to slide, against the action of springs, relatively to a link 7 attached to the other end of the bracelet. The bracelet is fastened by turning the flap 13 about its hinge and locking the hinge 14 inside the eye 2, the flap being held in locking position by flange members 12 which clip against the recessed sides of the casing 9. The members 12 prevent the flap 13 from being readily disengaged from the tongue 3.